Graton, CA Weather Forecast
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Graton Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
| Partly Cloudy | Mostly Cloudy | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Chance of Rain |
| Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C | Lo: 50°FLo: 10°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Lo: 45°FLo: 7°C | Hi: 56°FHi: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 AM PDT Sun Oct 25 2026 

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Issued: 250 AM PDT Sun Oct 25 2026
Key Messages
Updated at 1207 AM PDT Sun Oct 25 2026- Seasonably warm conditions today
- Cool conditions through the next week
- Rain chances late week into the upcoming weekend
- Minor coastal flooding at high tide for Bayshore locations through the week
Aviation
... (06Z TAFS) Issued at 835 PM PDT Sat Oct 24 2026
The evening Oakland upper air sounding showed 0.43" precipitable water which is near the 10th percentile for late October. Dry air and a clear sky /VFR/ tonight to daybreak Sunday will allow radi...
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